Impulse-correcting repeater



H. B. BROWN. IMPULSE CORRECTING REPEATER.

APPLiCATION FILED DEC-13,19I7- Patented Nov. M, 1922..

[rzuezzfun- Patented Nov. M, 1922.

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HENRY B. BROWN, OF CHICAGO, ILLINOIS, ASSIGNOR TO AUTOMATIC ELECTRIC COMPANY, OF CHICAGO, ILLINOIS, CORPORATION OF ILLINOIS.

IMPULSE-CORRECTIN G REPEA'I'ER.

Application filed December 13, 1917. Serial No. 206,897.

To all whom it may concern:

Be it known that I, HENRY B. BROWN, a citizenof the United States of America, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Impulse-Correcting Repeaters, of which the following is a-specification.

My invention relates in general to impulse correcting repeaters, and more particularly to means for correcting the speed of a set of impulses.

ore specifically my invention relates to a mechanical device throu h the medium of which a plurality of impu ses are received and by which said impulses are repeated at a normal rate of speed, incase they were received at a speed which was greater than the speed required.

' My invention is especially adapted for use in' automatic telephone systems in which lon distance connections are set :up by sen ing a plurality of sets of impulses over a long trunk line between exchanges or between cities to operate an automatic switch or switches on the distant end of said trunk line.

In a system of this sort it very often happens that the impulses when received at the distant end of the long distance trunk have a greater speed than is required to operate the automatic switch and should be slowed down in order to assure a perfect operation of said switch.

These and other objects of my invention will be more clearly understood by referring to the accompanying drawin s in which Fig. 1 is a conventional s owing of my improved impulse repeater.

Fig. 2 is a side view of the apparatus shown in Fig. 1 looking from the left.

Figure 3 is a diagrammatic showing of the repeater applied to a simple impulsing circuit. I v 1 I will now explain more in detail by referring to the above drawings.

: Referring to Figures 1 and 2 I have shownthe mechanism in a more or less conventional form and it will be understood that the apparatus might be mounted on any suitable base'or frame which will bring the cooperating parts into the desired relation.

A magnet 1 is provided which operates in response to impulses over any desired circuit to, operate a ratchet wheel 2 through said spring to hold the gear wheel 6 in such a position that the pin 8, which is rigid on said gear wheel, is held against the projection 9, which is rigid on the ratchet wheel 2. It will be seen therefore that, as the ratchet wheel 2 is rotated by the operation of magnet 1, the projection 9 will be moved away from the pin 8 and at the same time added tension will be stored up in the spring 7 which will force the gear wheel 6 to rotate in the same direction as the ratchet wheel 2.

The pin 8 will therefore follow the projection 9 until the impulses cease, at which time the pin 8 will again engage said projection and stop the motion of the gear wheel. As-

sociated with the gear wheel 6 is a pinion 10, on one end of a shaft 11 which is supported in any manner such as the bearings 12 and 13. The shaft 11 also carries a gear wheel 14: which meshes with a worm gear 15 on a governor of well known type, and

an insulated cam 16, which upon rotating with the shaft, intermittently opens the contact of a pair of springs 17, It will be seen therefore that, as the gear wheel 6 is operated by the spring 7 to follow the ratchet wheel 2, that the forward motion of the gear 6 is communicated to the shaft 11 through the medium of the pinion 10 and that the rotation of the shaft 11 is controlled by the governor 15 to rotate at a standard or predetermined rate of speed, according to the adjustment of said governor. The consequent rotation of the shaft 11 causes the cam interrupter 16 to open and close any desired circuit through the medium of the springs 17 at a uniform rate of speed. It will therefore be seen that a plurality of impulses may be delivered to the magnet 1 at a reater speed than is desired and that throug the medium of the train of above described and the influence o the governor, said impulses will be repeated into another circuit by the springs 17 at a uniform rate of speed.

Referring now to Figure 3 I have shown 110 formed in the 60 ears i the conductor 19 for operating an automatic switch or any desired mechanism. The relay 20 may be the usual line relay of a repeater and the slow relay 21 may be the usual relay for maintainlng the outgoing impul'sing circuit 19 closed to ground at springs 22. Now when'impuls'es are sent in over the conductor 18 from ground, the relay will operate to first energize the relay 7 21 through its front contact, and then upon each deenergization to send an impulse to the magnet 1, from ground through springs 23, springs 24:, and magnet 1 to battery; The relay 21 being slow acting retains its armatures in attracted position durin the time impulses are being received to maintain the circuit of the magnet 1 closed and to maintain the impulsing circuit through springs 17 closed. The magnet 1 upon ener izing in response to said im pulses rotates t e ratchet 2 in the manner pointed out in the explanation of Figs. 1 and 2, whereupon the gear train above described operates to openthe contact of the springs 17 a number of times to deliver impulses over the trunk 19 at a uniform rate of speed.

Although I have illustrated and described the operation of my repeater in connection with acircuit in which impulses are delivered over one conductor, it will be understood that I do not wish to limit myself to the exact method shown. The relay 20 may just as well be a double wound relay energized in series with battery over a two conductor trunk line, and the spring 17 may operate to open a similar two conductor trunk in place of the single conductor 19, in which case the lead from the front contact of springs 22 would lead to another outgoing conductor similar to the conductor 19 in place of leading)to'"'round as shown.

ther modifications can doubtless be made by one skilled in the art to adapt my invention to other systems or uses without changin the scope of my invention. What I consi er to be new and desire to have protected by Letters Patent will be pointed out in the appended claims.

What I claim as my invention is:

1. An impulse transmitter comprising a pair of contacts, an interrupter for said contacts, means for operating said inter rupter to transmit impulses v-ia said contacts, a governor for controlling said interrupter, an electromagnet for storing energy in said operating means to operate said interrupter and for predetermining the number of impulses to be transmitted by said impulse transmitter.

2. In a telephone system, an impulse transmitter, an interrupter for said impulse transmitter, means for governing the speed of said interrupter, a motor for causing the operation of said impulse transmitter and for limiting the extent of operation thereof, a relay for controlling the operation of said motor, at a varying speed, whereby when impulses are delivered to said motor through the medium of said relay, said transmitter will be operated at a uniform speed irrepective of the speed of impulse delivered from said relay.

3. In an impulse transmitter, a pair of contacts, an interrupter for said contacts, means for operating said interrupter to transmit impulses via said contacts, a spring for driving said operating means, a stop for limiting the movement of said means, a governor for controlling the speed of operation of said means, an electromagnetic motor for setting said stop at a predetermined point in the path of said operating means and for storing tension in said spring, whereby said operating means may be operated by, sald spring to transmit impulses through the medium of said contacts until stopped by said stop.

4. In an impulse transmitter, a pair of contacts, an interrupter for said contacts, a spring controlled gear train for operating said interrupter to transmit impulses through the medium of said contacts, a stop for limiting the movement of said gear train, electromagnetic means for moving.

said stop forward to store up tension in said spring whereby said gear train is advanced to meet said stop.

5. In an impulse transmitter, a pair of contacts, an interrupter for saidcontacts, a spring controlled gear train for operating said interrupter to transmit impulses through the medium of said contacts, a stop forlimiting the movement of said gear train, electromagnetic means for moving said stop forward to store up tension in said spring whereby said gear train is advanced to meet sai stop.

6. I11 a telephone system, a pair of contacts, an interrupter for said contacts, a 3

tact-s, an interrupter for said contacts, a

spring controlled gear train for operating said interrupter to transmit impulses through the medium of said contacts, a stop for limiting the movement of said gear train, a magnet for moving said stop to a predetermined position and for storing up tension in said spring, whereby said gear train is advanced to meet said stop, and a relay for controlling the operation of said magnet.

8. In a telephone system, a pair of contacts, an interrupter for said contacts, a spring controlled gear train for operating said interrupter to transmit impulses through the medium of said contacts, a stop for limiting the movement of saidgear train, a magnet for moving said stop to a predetermined position and for storing up tension in said spring, whereby said gear train is advanced to meet said stop, whereby said contacts are interrupted a predetermined number of times to deliver impulses.

9. In a telephone system, a pair of contacts, an interrupter for said contacts, a spring controlled gear train for operating said interrupter to transmit impulses through the medium of said contacts, a stop for limiting the movement of said geacr train, a magnet for moving said stop to a predetermined position and for storing up tension in said spring, whereby said gear train is advanced to meet said stop, whereby said contacts are interrupted a predetermined number of times to deliver impulses, and a relay for controlling the operation of said magnet.

10. In a telephone system, transmitter, a spring controlled mechanism for operating said transmitter to deliver impulses, a. magnet, a stop for limiting the number of impulses transmitted by said transmitter, means controlled by said magnet for storing tension in said spring and for moving said stop to a predetermined position, whereby said mechanism may be operated to transmit a predetermined number of impulses.

11. In a telephone system, an impulse transmitter, a spring controlled mechanism for operating said transmitter to deliver impulses, a magnet, a stop for limiting the number of impulses transmitted by said transmitter, means controlled by said magnet for storing tension in said spring and {an impulse for moving said stop to a predetermined position, whereby said mechanism may be operated to transmit a predetermined number of impulses, and a relay for controlling the operation of said magnet.

12. In a telephone system, an impulse repeater interposed between two stations for receiving impulses from one station and repeating the same to another station, said repeater comprising an impulse transmitter for sending out impulses, a governor for said transmitter, a magnet for both limiting the movement of said transmitter and for supplying energy to said mechanism, where by impulses received by said repeater at varying rates of speed are repeated to said second station at a uniform rate of speed through the medium of said mechanism and governor.

13. In an automatic impulse repeater, a transmitting device and a stopping device, a motor responsive to a series of impulses for advancing said stopping device, a spring for causing said transmitting .device to follow said stopping device, and a circuit in Which said transmitting device produces impulses while in motion.

14. In an automatic impulse repeater, two rotary members, a motor responsive to received impulses for advancin ber, a spring connecting said members and causing the second member to follow the first, and an impulse transmitting device operated by the second member while in motion to repeat the received impulses.

15. In an automatic impulse repeater, two rotary members, a motor responsive to received impulses for advancing the first member, a spring connecting said members and causing the second member to follow the first, an impulse transmitting device operated by the second memberwhile in motion to repeat the received impulses, and a governor for controlling the speed of said transmitting device.

Signed by me at Chicago, Cook County, Illinois, this 7th day of December, 1917.

HENRY B. BROWN.

the first mem- Y 

